package com.ieasy.basic.util.device;

import org.apache.commons.lang.StringUtils;


/**
 * 根据 user agent string 判断用户的平台、浏览器
 * 参考资料
 * **************************************************************************************************************************************************
 * 
 * 台式机
 * 
 * Linux Ubuntu
 * Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.2pre) Gecko/20100225 Ubuntu/9.10 (karmic) Namoroka/3.6.2pre
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Linux Mandriva 2008.1
 * Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008072403 Mandriva/3.0.1-1mdv2008.1 (2008.1) Firefox/3.0.1
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Linux suSE 10.1
 * Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.3) Gecko/20060425 SUSE/1.5.0.3-7 Firefox/1.5.0.31
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Windows XP SP3
 * Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1) Gecko/20090624 Firefox/3.5 (.NET CLR 3.5.30729)
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Windows Vista
 * Mozilla/5.0 (Windows; U; Windows NT 6.1; nl; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13
 * Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.6) Gecko/20100625 Firefox/3.6.6 (.NET CLR 3.5.30729)
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * windows 2000
 * Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.8.1b2) Gecko/20060821 Firefox/2.0b2
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Windows 7
 * Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Windows Server 2008
 * Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729)
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * iMac OSX 10.7.4
 * Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:13.0) Gecko/20100101 Firefox/13.0.1
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Mac OS X
 * Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.9) Gecko/20100824 Firefox/3.6.9
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * 
 * 手持设备
 * 
 * iPad
 * Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.10
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * iPad 2
 * Mozilla/5.0 (iPad; CPU OS 5_1 like Mac OS X; en-us) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.48.3
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * iPhone 4
 * Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * iPhone 5
 * Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3
 * --------------------------------------------------------------------------------------------------------------------------------------------------
 * Android
 * Mozilla/5.0 (Linux; U; Android 2.2; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
 * **************************************************************************************************************************************************
 * @author Defonds
 */
public class UserAgentUtil {

	/**
	 * 用途：根据客户端 User Agent Strings 判断其浏览器、操作平台
	 * if 判断的先后次序：
	 * 根据设备的用户使用量降序排列，这样对于大多数用户来说可以少判断几次即可拿到结果：
	 * 	>>操作系统:Windows > 苹果 > 安卓 > Linux > ...
	 * 	>>Browser:Chrome > FF > IE > ...
	 * @param userAgentStr
	 * @return
	 */
	public static UserAgent getUserAgent(String userAgent) {
		if (StringUtils.isBlank(userAgent)) {
			return null;
		} 
		
		if (userAgent.contains("Windows")) {//主流应用靠前
			/**
			 * ******************
			 * 台式机 Windows 系列
			 * ******************
			 * Windows NT 6.2	-	Windows 8
			 * Windows NT 6.1	-	Windows 7
			 * Windows NT 6.0	-	Windows Vista
			 * Windows NT 5.2	-	Windows Server 2003; Windows XP x64 Edition
			 * Windows NT 5.1	-	Windows XP
			 * Windows NT 5.01	-	Windows 2000, Service Pack 1 (SP1)
			 * Windows NT 5.0	-	Windows 2000
			 * Windows NT 4.0	-	Microsoft Windows NT 4.0
			 * Windows 98; Win 9x 4.90	-	Windows Millennium Edition (Windows Me)
			 * Windows 98	-	Windows 98
			 * Windows 95	-	Windows 95
			 * Windows CE	-	Windows CE
			 * 判断依据:http://msdn.microsoft.com/en-us/library/ms537503(v=vs.85).aspx
			 */
			if (userAgent.contains("Windows NT 6.2")) {//Windows 8
				return judgeBrowser(userAgent, "Windows", "8" , null);//判断浏览器
			} else if (userAgent.contains("Windows NT 6.1")) {//Windows 7
				return judgeBrowser(userAgent, "Windows", "7" , null);
			} else if (userAgent.contains("Windows NT 6.0")) {//Windows Vista
				return judgeBrowser(userAgent, "Windows", "Vista" , null);
			} else if (userAgent.contains("Windows NT 5.2")) {//Windows XP x64 Edition
				return judgeBrowser(userAgent, "Windows", "XP" , "x64 Edition");
			} else if (userAgent.contains("Windows NT 5.1")) {//Windows XP
				return judgeBrowser(userAgent, "Windows", "XP" , null);
			} else if (userAgent.contains("Windows NT 5.01")) {//Windows 2000, Service Pack 1 (SP1)
				return judgeBrowser(userAgent, "Windows", "2000" , "SP1");
			} else if (userAgent.contains("Windows NT 5.0")) {//Windows 2000
				return judgeBrowser(userAgent, "Windows", "2000" , null);
			} else if (userAgent.contains("Windows NT 4.0")) {//Microsoft Windows NT 4.0
				return judgeBrowser(userAgent, "Windows", "NT 4.0" , null);
			} else if (userAgent.contains("Windows 98; Win 9x 4.90")) {//Windows Millennium Edition (Windows Me)
				return judgeBrowser(userAgent, "Windows", "ME" , null);
			} else if (userAgent.contains("Windows 98")) {//Windows 98
				return judgeBrowser(userAgent, "Windows", "98" , null);
			} else if (userAgent.contains("Windows 95")) {//Windows 95
				return judgeBrowser(userAgent, "Windows", "95" , null);
			} else if (userAgent.contains("Windows CE")) {//Windows CE
				return judgeBrowser(userAgent, "Windows", "CE" , null);
			} 
		} else if (userAgent.contains("Mac OS X")) {
			/**
			 * ********
			 * 苹果系列
			 * ********
			 * iPod	-		Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_1 like Mac OS X; zh-cn) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5
			 * iPad	-		Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.10
			 * iPad2	-		Mozilla/5.0 (iPad; CPU OS 5_1 like Mac OS X; en-us) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.48.3
			 * iPhone 4	-	Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7
			 * iPhone 5	-	Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3
			 * 判断依据:http://www.useragentstring.com/pages/Safari/
			 * 参考:http://stackoverflow.com/questions/7825873/what-is-the-ios-5-0-user-agent-string
			 * 参考:http://stackoverflow.com/questions/3105555/what-is-the-iphone-4-user-agent
			 */
			if (userAgent.contains("iPod")) {
				return judgeBrowser(userAgent, "iPod", null , null);//判断浏览器
			} else if(userAgent.contains("Mac OS X")) {
				return judgeBrowser(userAgent, "Mac OS X", null , null);//判断浏览器
			}
		}
		return null;
	}
	
	/**
	 * 用途：根据客户端 User Agent Strings 判断其浏览器
	 * if 判断的先后次序：
	 * 根据浏览器的用户使用量降序排列，这样对于大多数用户来说可以少判断几次即可拿到结果：
	 * 	>>Browser:Chrome > IE11 > FF > IE > ...
	 * @param userAgent:user agent
	 * @param platformType:平台
	 * @param platformSeries:系列
	 * @param platformVersion:版本
	 * @return
	 */
	private static UserAgent judgeBrowser(String userAgent, String platformType, String platformSeries, String platformVersion) {
		if (userAgent.contains("Chrome")) {
			/**
			 * ***********
			 * Chrome 系列
			 * ***********
			 * Chrome 24.0.1295.0	-	Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.15 (KHTML, like Gecko) Chrome/24.0.1295.0 Safari/537.15
			 * Chrome 24.0.1292.0	-	Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.14 (KHTML, like Gecko) Chrome/24.0.1292.0 Safari/537.14
			 * Chrome 24.0.1290.1	-	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.13 (KHTML, like Gecko) Chrome/24.0.1290.1 Safari/537.13
			 * 判断依据:http://www.useragentstring.com/pages/Chrome/
			 */
			String temp = userAgent.substring(userAgent.indexOf("Chrome/") + 7);//拿到User Agent String "Chrome/" 之后的字符串,结果形如"24.0.1295.0 Safari/537.15"或"24.0.1295.0"
			String chromeVersion = null;
			if (temp.indexOf(" ") < 0) {//temp形如"24.0.1295.0"
				chromeVersion = temp;
			} else {//temp形如"24.0.1295.0 Safari/537.15"
				chromeVersion = temp.substring(0, temp.indexOf(" "));
			}
			return new UserAgent("Chrome", chromeVersion, platformType, platformSeries, platformVersion);
		} else if (userAgent.contains("rv:11.0")) {
			/**
			 * IE 11	-	Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
			 * 判断依据:http://msdn.microsoft.com/en-us/library/ms537503(v=vs.85).aspx
			 */
			if (userAgent.contains("rv:11.0")) {//Internet Explorer 11
				return new UserAgent("Internet Explorer", "11", platformType, platformSeries, platformVersion);
			}
		} else if (userAgent.contains("Firefox")) {
			/**
			 * *******
			 * FF 系列
			 * *******
			 * Firefox 16.0.1	-	Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1
			 * Firefox 15.0a2	-	Mozilla/5.0 (Windows NT 6.1; rv:15.0) Gecko/20120716 Firefox/15.0a2
			 * Firefox 15.0.2	-	Mozilla/5.0 (Windows NT 6.2; WOW64; rv:15.0) Gecko/20120910144328 Firefox/15.0.2
			 * 判断依据:http://www.useragentstring.com/pages/Firefox/
			 */
			String temp = userAgent.substring(userAgent.indexOf("Firefox/") + 8);//拿到User Agent String "Firefox/" 之后的字符串,结果形如"16.0.1 Gecko/20121011"或"16.0.1"
			String ffVersion = null;
			if (temp.indexOf(" ") < 0) {//temp形如"16.0.1"
				ffVersion = temp;
			} else {//temp形如"16.0.1 Gecko/20121011"
				ffVersion = temp.substring(0, temp.indexOf(" "));
			}
			return new UserAgent("Firefox", ffVersion, platformType, platformSeries, platformVersion);
		} else if (userAgent.contains("Safari")) {
			/**
			 * *******
			 * 苹果 Safari 系列
			 * *******
			 */
			String temp = userAgent.substring(userAgent.indexOf("Safari/") + 7);
			String ffVersion = null;
			if (temp.indexOf(" ") < 0) {//temp形如"16.0.1"
				ffVersion = temp;
			} else {//temp形如"16.0.1 Gecko/20121011"
				ffVersion = temp.substring(0, temp.indexOf(" "));
			}
			return new UserAgent("Safari", ffVersion, platformType, platformSeries, platformVersion);
		} else if (userAgent.contains("MSIE")) {
			/**
			 * *******
			 * IE 系列
			 * *******
			 * MSIE 10.0	-	Internet Explorer 10
			 * MSIE 9.0	-	Internet Explorer 9
			 * MSIE 8.0	-	Internet Explorer 8 or IE8 Compatibility View/Browser Mode
			 * MSIE 7.0	-	Windows Internet Explorer 7 or IE7 Compatibility View/Browser Mode
			 * MSIE 6.0	-	Microsoft Internet Explorer 6
			 * 判断依据:http://msdn.microsoft.com/en-us/library/ms537503(v=vs.85).aspx
			 */
			if (userAgent.contains("MSIE 10.0")) {//Internet Explorer 10
				return new UserAgent("Internet Explorer", "10", platformType, platformSeries, platformVersion);
			} else if (userAgent.contains("MSIE 9.0")) {//Internet Explorer 9
				return new UserAgent("Internet Explorer", "9", platformType, platformSeries, platformVersion);
			} else if (userAgent.contains("MSIE 8.0")) {//Internet Explorer 8
				return new UserAgent("Internet Explorer", "8", platformType, platformSeries, platformVersion);
			} else if (userAgent.contains("MSIE 7.0")) {//Internet Explorer 7
				return new UserAgent("Internet Explorer", "7", platformType, platformSeries, platformVersion);
			} else if (userAgent.contains("MSIE 6.0")) {//Internet Explorer 6
				return new UserAgent("Internet Explorer", "6", platformType, platformSeries, platformVersion);
			}
		} else {//暂时支持以上三个主流.其它浏览器,待续...
			return new UserAgent(null, null, platformType, platformSeries, platformVersion);
		}
		return null;
	}
}